Home / 42,765.12-64,131.73-14,677.21

Finding the Fourth Proportional to 42,765.12, 64,131.73 and 14,677.21

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Solution

The fourth proportional to 42,765.12, 64,131.73 and 14,677.21 is: 22,010.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,765.12 : 64,131.73 = 14,677.21 : x
  2. Step 2: Convert to fraction form
    42,765.12/64,131.73 = 14,677.21/x
  3. Step 3: Cross multiply
    42,765.12x = 64,131.73 × 14,677.21
  4. Step 4: Simplify right side
    42,765.12x = 941,274,814.53
  5. Step 5: Solve for x
    x = 941,274,814.53/42,765.12
  6. Step 6: Final answer
    x = 22,010.34

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.